The Atom should be using the acpi-pstates driver for frequency scaling...
If this is not working, check that SpeedStep is enabled in the BIOS, and
if it is, it's like that the
ACPI DSDT has not got information about the P-States that this CPU can
handle...
What is the motherboard and chip model?
I've got a single core hyperthreaded Atom N270 based Asus eeepc901 which
works fine with the
acpi-pstates cpufreq driver...
p4-clockmod is as the name suggests - useful for the P4
-Etienne
Gordon Henderson wrote:
On Thu, 27 Nov 2008, Joshua Murphy wrote:
On Thu, Nov 27, 2008 at 7:12 PM, Gordon Henderson <gordon@xxxxxxxxxx>
wrote:
Getting the above message when I boot 2.6.27 on a dual-core Intel Atom
motherboard and the rest of the message says I ought to send an email
here...
Is the Atom being worked on? Is there anything anyone wants me to
post to
help?
Cheers,
Gordon
I could be terribly off base with this (I'm hardly more than a lurker
around here) but considering how much closer the Atom is to the Core 2
range of processors than to a standard P4 makes me wonder if you
shouldn't just work with the acpi-cpufreq driver and the power states
it detects, assuming it works at all on the system you have to work
with.
I'm really no further I'm afraid - been through kernel compile
options, acpi is all enabled, but not telling me anything.
I'm actually wondering if it's actually going to make a difference -
given that it's not the CPU that has the fan on top!
Relevant (or irrelevant?) buts of dmesg output look like:
processor ACPI0007:00: registered as cooling_device0
processor ACPI0007:01: registered as cooling_device1
processor ACPI0007:02: registered as cooling_device2
processor ACPI0007:03: registered as cooling_device3
coretemp: Unknown CPU model 1c
coretemp: Unknown CPU model 1c
coretemp: Unknown CPU model 1c
coretemp: Unknown CPU model 1c
p4-clockmod: Unknown p4-clockmod-capable CPU. Please send an e-mail to
<cpufreq@xxxxxxxxxxxxxxx>
p4-clockmod: Unknown p4-clockmod-capable CPU. Please send an e-mail to
<cpufreq@xxxxxxxxxxxxxxx>
p4-clockmod: Unknown p4-clockmod-capable CPU. Please send an e-mail to
<cpufreq@xxxxxxxxxxxxxxx>
p4-clockmod: Unknown p4-clockmod-capable CPU. Please send an e-mail to
<cpufreq@xxxxxxxxxxxxxxx>
Dual core + HT, so I guess that's why there are 4 copies!
I've put the whole thing up on
http://unicorn.drogon.net/atom.dmesg.txt
if anyone is intersted..
Any clues or hints, welcome.
Thanks,
Gordon
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